Integrated analysis of the metabolome and transcriptome provides insights into anthocyanin biosynthesis of cashew apple
文献类型： 外文期刊
第一作者： Huang, Haijie
作者： Huang, Haijie;Huang, Weijian;Zhang, Zhongrun;Huang, Haijie;Huang, Weijian;Zhang, Zhongrun;Huang, Haijie;Huang, Weijian;Zhang, Zhongrun;An, Bang;Zhang, Bei;An, Bang;Zhao, Li
作者机构：
关键词： Cashew; Anthocyanin; Metabolome; Transcriptome; Metabolic network
期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：8.1； 五年影响因子：7.7 ）
ISSN： 0963-9969
年卷期： 2024 年 175 卷
页码：
收录情况： SCI
摘要： The cashew apple remains an underutilized agricultural product despite its abundance as a by-product of cashew nut production. Anthocyanins are water-soluble pigments responsible for red, purple, and blue hues in plant tissues and have various health-promoting properties. To investigate the anthocyanin biosynthesis in cashew apples, fruits with varying peel colors from three cultivars were subjected to integrative analyses with metabolomics and transcriptomics. Through a UPLC-ESI-MS/MS-based targeted metabolomics analysis, a total of 26 distinct anthocyanin compounds were identified in the fruits of the three cashew cultivars. Subsequent quantification revealed that Pelargonidin-3-O-galactoside, Petunidin-3-O-arabinoside, and Cyanidin-3-O-galactoside were the primary contributors responsible for the red pigmentation in cashew apple peels. Following transcriptomic analysis showed that the expression levels of anthocyanin biosynthetic genes were predominantly higher in the red cashew apples as compared to the other two cultivars. Moreover, correlation analysis revealed that eight potential transcription factors implicated in the regulation of anthocyanin biosynthesis. Among these, four transcription factors exhibited positive correlations with both anthocyanin contents and anthocyanin biosynthetic gene expression, while the remaining four transcription factors displayed negative correlations. These findings provide a comprehensive understanding of the molecular basis of anthocyanin biosynthesis in cashew apple peels.
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